Split the leeks in half lengthwise and trim the bottoms, leaving a little of the root end intact so that they stay together. Wash well several times and dry. Cut lengthwise into thin strips, about 2 inches long.,In a medium skillet (nonstick is best) over medium heat, melt teaspoon of margarine. Add the leeks and cook until soft, about 3 minutes. Remove from the pan and set aside.,In the same pan, melt the remaining teaspoon of margarine and add the apple slices. Turn the heat to high and cook until the apples are lightly browned and softened, about 3 minutes.,Return the leeks to the pan and toss together to combine.,______